Google Ad Manager App Mediation

Overview

Google Ad Manager App Mediation is a mobile ad-serving feature that sequences eligible third-party networks according to expected yield. It suits app publishers who want mediation to compete with Ad Manager demand, and is less suitable for teams seeking a standalone setup without Google’s account and SDK requirements.

Its strongest case is yield-based ordering alongside Ad Manager line items and real-time bids. The trade-off is a sequential chain that can leave requests unfilled and add latency as networks are called.

Key features

Yield groups determine which networks can serve each request and which inventory they can access. Ad Manager orders eligible networks using estimated CPM and real-time Ad Exchange CPM, excluding networks with lower expected yield than Ad Exchange. Automatic data collection can estimate a network’s CPM from historical CPM data adjusted for impression discrepancies, reducing the need to supply that estimate manually.

The expected yield of the mediation chain competes through Dynamic Allocation with Ad Manager line items and real-time bids from Authorized Buyers and Exchange Bidders. In practice, mediation is part of a broader Ad Manager auction rather than an isolated sequence detached from its other demand.

The app sends each request through Google Mobile Ads SDK, which calls network adapters in sequence until one returns an ad. A serving chain can include up to 50 networks; because calls are sequential, longer chains risk greater latency. If none fills the request, it remains unfilled rather than automatically returning to the ad server.

Ad inspector can check fill, surface show errors, reveal mediation details for a request, and test an individual yield partner on a device. Yield groups can include rewarded and rewarded interstitial formats. Third-party mediation impressions are not eligible for Active View measurement, a material limitation for publishers relying on that measurement.

A partner absent from the available network list can be added as an Other company, but doing so requires custom events in the app as well as yield groups. Mediation can pass a child-directed age treatment signal from the Google Mobile Ads SDK to third-party networks; developers remain responsible for those networks’ ad treatment. Publishers should also review applicable privacy requirements, including CPRA, GDPR, and LGPD, when configuring partners.

Pricing

The Google Ad Manager App Mediation plan costs nothing. It includes up to 50 mediation networks in a serving chain; the plan requires an Ad Exchange for mobile apps account linked and set as the default for dynamic allocation. There is no paid tier described for this feature, so its listed price makes it an option for publishers who want mediation without a software charge, not a promise of cost-free implementation: SDK and adapter integration and the account prerequisite still apply.

Google Ad Manager requires an AdSense account to work with the platform. The free plan’s 50-network ceiling is also a practical reason not to build an unnecessarily long chain, given the latency risk of sequential callouts.

Platforms

The mediation setup guides cover Android and iOS apps, with platform-specific SDK and adapter guidance. Ad Manager is also available on the web, but mediation requests themselves pass through the mobile app’s Google Mobile Ads SDK.

Who it's for

This is a strong fit for app publishers already working in Google Ad Manager who want third-party network yield to compete with the platform’s other demand. Developers must be prepared to install Google Mobile Ads SDK, implement adapters for each chosen network, create yield partners and yield groups, and link an Ad Exchange for mobile apps account as the dynamic-allocation default.

It is a weaker fit for publishers who need requests to fall back automatically when every mediated network fails, or who depend on Active View measurement for third-party mediation impressions. Teams with many networks should weigh the serving limit and latency risk rather than assume a longer sequence is always better.

Pros and cons

• Pro: Eligible networks are ordered using estimated CPM and real-time Ad Exchange CPM, and their expected yield competes with Ad Manager line items and real-time bids through Dynamic Allocation.
• Pro: Ad inspector provides request-level mediation details and tools to check fill, diagnose show errors, and test a yield partner on a device.
• Con: Setup depends on Google Mobile Ads SDK, network adapters, an Ad Exchange for mobile apps account, and an AdSense account for Google Ad Manager.
• Con: A failed chain stays unfilled; it does not automatically pass the request back to the ad server.
• Con: Sequential callouts can increase latency, chains are capped at 50 networks, and third-party mediation impressions are ineligible for Active View.

Alternatives

For a broader category comparison, browse Game Monetization Software.

• DT FairBid is a free alternative for publishers who want mediation without a software charge; its publisher collects payments directly from mediated ad networks.
• Google AdMob is another free Google option for app advertising, with earnings dependent on advertiser demand and ad performance and a USD 100 payment threshold.
• CAS.AI Mediation is free to set up, but CAS takes a cut from earnings; its no-loss A/B test applies to apps with 5,000 or more daily active users.
• Apphud, PlayFab, RevenueCat, Superwall, and Qonversion are also alternatives.

Verdict

Choose Google Ad Manager App Mediation if your app already uses Ad Manager and you want eligible third-party networks to compete on expected yield alongside its other demand. Its free price and request-level diagnostics are compelling, but the SDK, adapter, Ad Exchange, and AdSense prerequisites are real integration costs, and an unfilled chain will not fall back automatically. Look elsewhere if that behavior or Active View measurement for mediated impressions is essential.